Title | Spherical, rolling magnet generators for passive energy harvesting from human motion |
Publication Type | Journal Article |
Year of Publication | 2009 |
Authors | Bowers, B., and D. P. Arnold |
Journal | J. Micromech. Microeng. |
Volume | 19 |
Pagination | 094008 |
Date Published | 09/2009 |
Other Numbers | 7 pages |
Abstract | In this work, non-resonant, vibrational energy harvester architectures intended for human-motion energy scavenging are researched. The basic design employs a spherical, unidirectionally-magnetized permanent magnet (NdFeB) ball that is allowed to move arbitrarily in a spherical cavity wrapped with copper coil windings. As the ball rotates and translates within the cage, the time-varying magnetic flux induces a voltage in the coil according to Faraday |
URL | http://dx.doi.org/10.1088/0960-1317/19/9/094008 |
DOI | 10.1088/0960-1317/19/9/094008 |